Brazilian Lucas Mendes, fully recovered from a thigh injury which delayed his league debut for leaders Olympique Marseille, could play at bottom club Troyes on Sunday in place of defender Jeremy Morel who has a back injury.
"I'm 100 percent now and I can play without any problem," Mendes told the club website, adding that he was busy learning French to improve communication with his team-mates after signing for the club in late August.
Mater's fellow defender Loris Nery will also miss Saturday's match against FC Lorient with a calf injury, sustained last week.
Stade Rennes coach Frederic Antonetti has dropped defender Chris Mavinga and midfielder Yann M'Vila from the first team after the pair had an unauthorised outing to a Paris nightclub last weekend between two under-21 European championship qualifying games against Norway.
"Stade Rennes can no longer tolerate irresponsible behaviour by certain players," the club said in a statement on Friday, adding that the pair would train with the development squad.
Olympique Lyon playmaker Yoann Gourcuff could be back in the side by the end of October, two months after injuring his left knee in a league game, coach Remi Garde told L'Equipe on Friday.
